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llvm-project/llvm/test/Transforms/SimplifyCFG/basictest.ll

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convert to filecheck llvm-svn: 91889
2009-12-22 14:04:26 +08:00
; Test CFG simplify removal of branch instructions.
Initial testcases for CFG simplify (which is part of DCE for now) llvm-svn: 2466
2002-05-06 10:37:38 +08:00
;
convert to filecheck llvm-svn: 91889
2009-12-22 14:04:26 +08:00
; RUN: opt < %s -simplifycfg -S | FileCheck %s
Initial testcases for CFG simplify (which is part of DCE for now) llvm-svn: 2466
2002-05-06 10:37:38 +08:00
Upgrade tests to not use llvm-upgrade. llvm-svn: 48483
2008-03-18 11:45:45 +08:00
define void @test1() {
make these tests a bit less fragile llvm-svn: 121682
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br label %1
Upgrade tests to not use llvm-upgrade. llvm-svn: 48483
2008-03-18 11:45:45 +08:00
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test1(
convert to filecheck llvm-svn: 91889
2009-12-22 14:04:26 +08:00
; CHECK-NEXT: ret void
Initial testcases for CFG simplify (which is part of DCE for now) llvm-svn: 2466
2002-05-06 10:37:38 +08:00
}
Upgrade tests to not use llvm-upgrade. llvm-svn: 48483
2008-03-18 11:45:45 +08:00
define void @test2() {
ret void
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test2(
convert to filecheck llvm-svn: 91889
2009-12-22 14:04:26 +08:00
; CHECK-NEXT: ret void
; CHECK-NEXT: }
Initial testcases for CFG simplify (which is part of DCE for now) llvm-svn: 2466
2002-05-06 10:37:38 +08:00
}
Upgrade tests to not use llvm-upgrade. llvm-svn: 48483
2008-03-18 11:45:45 +08:00
define void @test3(i1 %T) {
make these tests a bit less fragile llvm-svn: 121682
2010-12-13 13:10:30 +08:00
br i1 %T, label %1, label %1
Upgrade tests to not use llvm-upgrade. llvm-svn: 48483
2008-03-18 11:45:45 +08:00
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test3(
convert to filecheck llvm-svn: 91889
2009-12-22 14:04:26 +08:00
; CHECK-NEXT: ret void
Initial testcases for CFG simplify (which is part of DCE for now) llvm-svn: 2466
2002-05-06 10:37:38 +08:00
}
Implement PR5795 by merging duplicated return blocks. This could go further by merging all returns in a function into a single one, but simplifycfg currently likes to duplicate the return (an unfortunate choice!) llvm-svn: 91890
2009-12-22 14:07:30 +08:00
; PR5795
define void @test5(i32 %A) {
switch i32 %A, label %return [
make these tests a bit less fragile llvm-svn: 121682
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i32 2, label %1
i32 10, label %2
Implement PR5795 by merging duplicated return blocks. This could go further by merging all returns in a function into a single one, but simplifycfg currently likes to duplicate the return (an unfortunate choice!) llvm-svn: 91890
2009-12-22 14:07:30 +08:00
]
ret void
ret void
return: ; preds = %entry
ret void
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @test5(
Implement PR5795 by merging duplicated return blocks. This could go further by merging all returns in a function into a single one, but simplifycfg currently likes to duplicate the return (an unfortunate choice!) llvm-svn: 91890
2009-12-22 14:07:30 +08:00
; CHECK-NEXT: ret void
}
Fix pr14893. When simplifycfg moves an instruction, it must drop metadata it doesn't know is still valid with the preconditions changes. In particular, it must drop the range and tbaa metadata. The patch implements this with an utility function to drop all metadata not in a white list. llvm-svn: 200322
2014-01-29 00:56:46 +08:00
; PR14893
define i8 @test6f() {
; CHECK-LABEL: @test6f
; CHECK: alloca i8, align 1
; CHECK-NEXT: call i8 @test6g
; CHECK-NEXT: icmp eq i8 %tmp, 0
; CHECK-NEXT: load i8* %r, align 1{{$}}
bb0:
%r = alloca i8, align 1
%tmp = call i8 @test6g(i8* %r)
%tmp1 = icmp eq i8 %tmp, 0
br i1 %tmp1, label %bb2, label %bb1
bb1:
%tmp3 = load i8* %r, align 1, !range !2, !tbaa !1
%tmp4 = icmp eq i8 %tmp3, 1
br i1 %tmp4, label %bb2, label %bb3
bb2:
br label %bb3
bb3:
%tmp6 = phi i8 [ 0, %bb2 ], [ 1, %bb1 ]
ret i8 %tmp6
}
declare i8 @test6g(i8*)
!0 = metadata !{metadata !1, metadata !1, i64 0}
!1 = metadata !{metadata !"foo"}
!2 = metadata !{i8 0, i8 2}